本文件确立了室内大气低腐蚀性的分类。 它规定了在规定的暴露期后，用于确定低腐蚀性室内大气腐蚀性类别的腐蚀性侵蚀的参考金属。 它根据标准试样的腐蚀侵蚀定义了室内大气的腐蚀性类别。 它指出了室内大气的重要参数，可作为室内腐蚀性评估的基础。 ISO 11844-2中给出了腐蚀侵蚀测定方法的选择、标准试样的描述、暴露条件和评估。ISO 11844-3中给出了影响室内腐蚀性的环境参数的测量。

This document establishes a classification of low corrosivity of indoor atmospheres. It specifies the reference metals for which a corrosion attack after a defined exposure period is used for determining corrosivity categories of indoor atmospheres of low corrosivity. It defines corrosivity categories of indoor atmospheres according to corrosion attack on standard specimens. It indicates important parameters of indoor atmospheres that can serve as a basis for an estimation of indoor corrosivity. The selection of a method for the determination of corrosion attack, description of standard specimens, exposure conditions and evaluation are given in ISO 11844-2. The measurement of environmental parameters affecting indoor corrosivity is given in ISO 11844-3.